exactly 250.0 mL in a volumetric flask. A 50.0 mL aliquot is withdrawn with a pipet and titrated with 34.15 mL of 0.0566 M solutions of l2. Calculate the following: A) The percentage As in the sample B) The percentage expressed as As2O3

Q: A sample of vinegar is to be analyzed for its acetic acid content. A volume of 50.0 mL is measured…

A: The volume of 1000.0 mL is equal to 1.0 L. The number of moles of NaOH or OH- in the 31.66 mL of…

Q: 25 mL of a bleach (NAOCI) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: The question is based on the concept of complexometric titrations.   we have to calculate percentage…

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100. mL of a solution of Pb(NO3)2, a precipitate of PbS04…

A: Given: Volume of H2SO4 = 38.0 mL Concentration of H2SO4 = 0.1250 M Volume of Pb(NO3)2 = 100.0 mL…

Q: A student wanted to determine the percent of NaOCI in a commercial bleaching solution. He diluted…

A: Given data, Mass of bleach = 5.0g Volume of flask = 100mL=0.1L Volume of sample = 25mL=0.025L…

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 99.50 mL of 1.500 M NaCl, and the PbCl₂…

A: The balanced chemical equation for the precipitation of lead (II) chloride can be written as:…

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: The question is based on the concept of quantitative analysis. we have to calculate percentage…

Q: What mass of FeSO4.(NH4)2SO4. 6H2O is present in a sample if it is titrated to its equivalence point…

A: Given: Volume of  KMnO4    = 4.100 mL Concentration of KMnO4 = 0.100 N mass of FeSO4.(NH4)2SO4.…

Q: was made up by dissolving 155 mg of KHP to a final volume of 10.00 mL. Titration of 1.00 mL of this…

A:

Q: A stock solution of FD&C Yellow No. 5 (Tartrazine, 234.3 g/mol) was prepared by placing 5.16 g in a…

A:

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100. mL of a solution of PbBr2, a precipitate of PbSO4…

A: Mass of PbSO4 = 0.0471 g Molar mass of PbSO4 =303.28 g/mol Volume of PbBr2 = 100 mL

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 119.50 mL of 1.500 M NaCl, and the PbCl₂…

A: The balanced Chemical Reaction for less Nitrate and sodium chloride is - Pb(NO₃)₂  + 2NaCl ---->…

Q: What mass of FeSO4.(NH4)2SO4. 6H2O is present in a sample if it is titrated to its equivalence point…

A:

Q: The calcium in a 200.0-mL sample of natural water was determined by precipitating the cation as…

A: The calcium in a 200.0-mL sample of natural water was determined by precipitating the cation as…

Q: The following solutions are needed to be prepared for the titration procedure: 1. 20 mL of 2 M HCl…

A: Given: Mass of Fe(OH)n used = 1.0867 g Volume of HCl solution used = 20 mL = 0.020 L…

Q: 185 mL sample of 1.20 M Pb(NO₃)₂ is mixed with 61.5 mL of 1.50 M NaCl, and the PbCl₂ precipitate is…

A: Lead nitrate reacts with sodium chloride to form lead chloride and sodium nitrate. Write the…

Q: 0.3043 g of pure KHP was weighed out and titrated to an end point with 15.12 mL of a NaOH solution…

A: Neutralization reaction between KHP (C8H5KO4) and NaOH is given below,

Q: The alcohol content in a 10.0-g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The number of moles of solute to the volume of solution in liters is known as molarity.

Q: A 185.0 mL sample of 1.200 M Pb(NO3)2 is mixed with 99.50 mL of 1.500 M NaCl and the PbCl2…

A: Concentration of Pb(NO3)2 = 1.200 MVolume of sample of Pb(NO3)2 = 185 mLConcentration of NaCl =…

Q: The arsenic in a 1.208-g sample of a pesticide was converted to H3 AsO4 by suitable treatment. The…

A:

Q: 0.5366 g of an KHP sample of unknown purity was massed. The sample was dissolved in approximately…

A: The reaction between NaOH and KHP can be shown as,

Q: mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL…

A: The question makes use of iodometric titrations in which  indirectly liberated iodine is titrated…

Q: The calcium in a 200 mL sample of water sample was determined by precipitating the cation as CaC2O4.…

A: Solution- The concentration of Ca that is present in water is to be determined in the units of ‘g’…

Q: 25 ml sample of H3PO4, requires 31.15 mL of 0.242N KOH for its titration. What is the normality of…

A:

Q: 100.0 mL of 0.60 M aqueous Pb(NO3)2 is mixed with excess aqueous KI. What mass of precipitate is…

A:

Q: a student weights out 1.118 g of impure KHP, dissolves the sample in deionized water and titrates it…

A: %Purity = 100 x (Mass of pure KHP/Mass of impure sample) So, Number of mol of NaOH = Number of mol…

Q: A sample weighing 3.458 g is dissolved and diluted to exactly 250.0 mL in a volumetric flask. A 50.0…

A: Given, A sample weighing 3.458 g is dissolved and diluted to exactly 250.0 mL in a volumetric flask.…

Q: A 185.0 mL sample of 1.200 M Pb(NO₂), is mixed with 73.50 mL of 1.500 M NaCl, and the PbCl,…

A: We need to find the mass of PbBr2 precipitated by assuming the yield of the reaction is 100%.  It is…

Q: A solution is prepared by pipetting 25.0 mL of 0.350 M CuCl2 into a 100.0 mL volumetric flask,…

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: A pure organic compound has the formula C4H8SOx. A sample of a compound was decomposed; the sulfur…

A: Molecular formula = C4H8SOx  weight of sample = 12.64 mg Ba(ClO4)2 needed for titration = 10.60 mL…

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100 mL of a solution of PbI2, a precipitate of PbSO4…

A: Given: Concentration of H2SO4 = 0.1250 M Volume of H2SO4 solution = 38.0 mL = 0.038 L…

Q: What mass of FeSO4.(NH4)2SO4. 6H2O is present in a sample if it is titrated to its equivalence point…

A:

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 52.50 mL of 1.500 M NaCl, and the PbCl₂…

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 97.50 mL of 1.500 M NaCl, and the PbCl₂…

A: Given, A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 97.50 mL of 1.500 M NaCl, and the PbCl₂…

Q: The arsenic in a 1.223-g sample of a pesticide was converted to H3AsO4 by suitable treatment. The…

A:

Q: (b) An impure sample of (COOH)2.2H2O that had a mass of 1.00 g was dissolved in water and titrated…

A: Whenver an acid and base reacts with each other than they form salt and water and the process is…

Q: A 185 mL sample of 1.20 M Pb(NO₃)₂ is mixed with 99.5 mL of 1.50 M NaCl, and the PbCl₂ precipitate…

A: Writing balanced equation for the first precipitationPb(NO3)2  (aq) + 2 NaCl (aq)  →PbCl2 (s) + 2…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.